Method and device in communication node used for wireless communication

ABSTRACT

The present disclosure provides a method and a device in a communication node for wireless communications. The communication node in the present disclosure first receives first information, then receives second information, and then transmits a first radio signal; wherein the first information is used to determine a first transmission timing adjustment, the second information is used to determine a second transmission timing adjustment, and a start time for a transmission of the first radio signal is related to the first transmission timing adjustment and the second transmission timing adjustment; a minimum step-size size corresponding to the first transmission timing adjustment is not equal to a minimum step-size size corresponding to the second transmission timing adjustment; the first information, the second information and the first radio signal are all transmitted through an air interface. The disclosure can support large-delay-transmission and reduce overhead for configuring signaling of Time Advance (TA).

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of the U.S. patent application Ser.No. 16/889,743, filed on Jun. 1, 2020, which is a continuation ofInternational Application No. PCT/CN2017/114829, filed on Dec. 6, 2017,the full disclosure of which is incorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to a transmission method and device in awireless communication system and in particular to a transmission schemeand device in non-terrestrial wireless communications.

Related Art

The disclosure scenarios of wireless communication systems will becomeincreasingly diverse in the future, and different disclosure scenariosput forward different performance requirements on the system. In orderto meet the different performance requirements of various applicationscenarios, the research on New Radio (NR), or what is called FifthGeneration (5G), is decided to be conducted at the 3rd GenerationPartner Project (3GPP) Radio Access Network (RAN) #72 plenary meeting,and the Work Item (WI) of NR was approved at the 3GPP RAN #75 plenarymeeting to standardize NR.

In order to adapt to various application scenarios and meet differentrequirements, a research project on Non-Terrestrial Networks (NTN) underNR was also approved at the 3GPP RAN #75 plenary meeting. The researchproject started in version R15, and then started WI in version R16 tostandardize related techniques.

SUMMARY

In Non-Terrestrial Networks (NTN), a User Equipment (UE) is incommunication with a satellite or an aircraft via 5G network. Due to thedistance from the satellite or the aircraft to the UE is larger thanthat from a terrestrial base station to the UE, a longer PropagationDelay is incurred in communications between the satellite or theaircraft and the UE. In addition, when a satellite is used as a relayequipment of a terrestrial base station, a delay in a Feeder Linkbetween the satellite and the terrestrial base station will furtherincrease transmission delay between a UE and a base station. In theexisting Long Term Evolution (LTE) or 5G NR system, in order to ensurethe synchronization of the uplink transmission, so as to avoid theinterference between users and reduce the scheduling complexity, anetwork equipment will configure a Timing Advance (TA) for uplinktransmissions from a UE according to propagation delay. Because theexisting TA configuration is designed for traditional terrestrialcommunications, which cannot be directly applied to NTN network, so anew design is needed to support NTN communications.

The disclosure provides a solution to the problem of uplink timingadjustment in NR NTN communications. It should be noted that embodimentsand characteristics of the embodiments of a base station in the presentdisclosure may be applied to a UE if no conflict is incurred, and viceversa. Further, the embodiments and the characteristics of theembodiments in the present disclosure may be mutually combined if noconflict is incurred.

The present disclosure provides a method in a first-type communicationnode for wireless communication, comprising:

receiving first information;

receiving second information; and

transmitting a first radio signal;

wherein the first information is used to determine a first transmissiontiming adjustment, the second information is used to determine a secondtransmission timing adjustment, and a start time for transmission of thefirst radio signal is related to both the first transmission timingadjustment and the second transmission timing adjustment; a minimumstep-size corresponding to the first transmission timing adjustment isnot equal to a minimum step-size corresponding to the secondtransmission timing adjustment; the first information, the secondinformation and the first radio signal are all transmitted through anair interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the first transmission timing adjustment is one ofQ1 candidate adjustments, and the second transmission timing adjustmentis one of Q2 candidate adjustments; the minimum step-size correspondingto the first transmission timing adjustment is equal to a minimum valueof an absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

receiving third information;

wherein the start time for the transmission of the first radio signal isa first time, and an expected start time for a reception of the firstradio signal is a second time; a sum of the first transmission timingadjustment and the second transmission timing adjustment is used todetermine a length of a time interval from the first time to the secondtime; the third information is used to determine the second time, andthe third information is transmitted through the air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the Q2 candidate adjustments are obtained byrespectively multiplying Q2 candidate integers by the minimum step-sizecorresponding to the second transmission timing adjustment, and the Q2candidate integers are obtained by respectively subtracting a firstthreshold from Q2 consecutive non-negative integers; the secondinformation is used in the Q2 consecutive non-negative integers toindicate consecutive non-negative integers that obtain the secondtransmission timing adjustment, and the first threshold is related to atleast one of the Q2 or the first transmission timing adjustment.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

receiving fourth information;

wherein the Q2 consecutive non-negative integers belong to a firstinteger set, and the fourth information is used to determine the firstinteger set in X integer sets, the X being a positive integer greaterthan 1; each of the X integer sets comprises a positive integer numberof non-negative integer(s), the X integer sets being predefined, and thefourth information is transmitted through the air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the Q1 candidate adjustments are predefined; orthe Q1 candidate adjustments are obtained by respectively multiplyingthe Q1 candidate integers by the minimum step-size corresponding to thefirst transmission timing adjustment; the first information indicates acandidate integer generating the first transmission timing adjustment inthe Q1 candidate integers, the Q1 candidate integers all beingnon-negative values.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

receiving fifth information;

wherein the fifth information is used to determine whether the minimumstep-size corresponding to the first transmission timing adjustment isequal to the minimum step-size corresponding to the second transmissiontiming adjustment, and the fifth information is transmitted through theair interface.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

transmitting a second radio signal;

wherein the second radio signal is used to determine at least one of astart time for a transmission of the first information and a start timefor a transmission of the second information, and the second radiosignal is transmitted through the air interface.

The present disclosure provides a method in a second communication nodefor wireless communication, comprising:

transmitting first information;

transmitting second information; and

receiving a first radio signal;

wherein the first information is used to determine a first transmissiontiming adjustment, the second information is used to determine a secondtransmission timing adjustment, and a start time for a transmission ofthe first radio signal is related to the first transmission timingadjustment and the second transmission timing adjustment; a minimumstep-size corresponding to the first transmission timing adjustment isnot equal to a minimum step-size corresponding to the secondtransmission timing adjustment; the first information, the secondinformation and the first radio signal are all transmitted through anair interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the first transmission timing adjustment is one ofQ1 candidate adjustments, and the second transmission timing adjustmentis one of Q2 candidate adjustments; the minimum step-size correspondingto the first transmission timing adjustment is equal to a minimum valueof an absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

transmitting third information;

wherein the start time for the transmission of the first radio signal isa first time, and an expected start time for a reception of the firstradio signal is a second time; a sum of the first transmission timingadjustment and the second transmission timing adjustment is used todetermine a length of a time interval from the first time to the secondtime; the third information is used to determine the second time, andthe third information is transmitted through the air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the Q2 candidate adjustments are obtained bymultiplying Q2 candidate integers respectively by the minimum step-sizecorresponding to the second transmission timing adjustment, and the Q2candidate integers are obtained by subtracting a first threshold from Q2consecutive non-negative integers; the second information is used in theQ2 consecutive non-negative integers to indicate consecutivenon-negative integers that obtain the second transmission timingadjustment, and the first threshold is related to at least one of the Q2or the first transmission timing adjustment.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

transmitting fourth information;

wherein the Q2 consecutive non-negative integers belong to a firstinteger set, and the fourth information is used to determine the firstinteger set among X integer sets, the X being a positive integer greaterthan 1; each of the X integer sets comprises a positive integer numberof non-negative integer(s), the X integer sets being predefined, and thefourth information is transmitted through the air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the Q1 candidate adjustments are predefined; orthe Q1 candidate adjustments are obtained by multiplying the Q1candidate integers respectively by the minimum step-size correspondingto the first transmission timing adjustment; the first informationindicates a candidate integer generating the first transmission timingadjustment in the Q1 candidate integers, the Q1 candidate integers allbeing non-negative values.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

transmitting fifth information;

wherein the fifth information is used to determine whether the minimumstep-size corresponding to the first transmission timing adjustment isequal to the minimum step-size corresponding to the second transmissiontiming adjustment, and the fifth information is transmitted through theair interface.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

receiving a second radio signal;

wherein the second radio signal is used to determine at least one of astart time for a transmission of the first information or a start timefor a transmission of the second information, and the second radiosignal is transmitted through the air interface.

The present disclosure provides a first-type communication node devicefor wireless communication, comprising:

a first receiver, receiving first information;

a second receiver, receiving second information; and

a first transmitter, transmitting a first radio signal;

wherein the first information is used to determine a first transmissiontiming adjustment, and the second information is used to determine asecond transmission timing adjustment; a start time for a transmissionof the first radio signal is related to the first transmission timingadjustment and the second transmission timing adjustment; a minimumstep-size corresponding to the first transmission timing adjustment isnot equal to a minimum step-size corresponding to the secondtransmission timing adjustment; the first information, the secondinformation and the first radio signal are all transmitted through anair interface.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the first transmissiontiming adjustment is one of Q1 candidate adjustments, and the secondtransmission timing adjustment is one of Q2 candidate adjustments; theminimum step-size corresponding to the first transmission timingadjustment is equal to a minimum value of an absolute value of adifference of any two of the Q1 candidate adjustments, and the minimumstep-size corresponding to the second transmission timing adjustment isequal to a minimum value of an absolute value of a difference of any twoof the Q2 candidate adjustments, both the Q1 and the Q2 being positiveintegers greater than 1.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the second receiver alsoreceives third information; wherein the start time for the transmissionof the first radio signal is a first time, and an expected start timefor a reception of the first radio signal is a second time; a sum of thefirst transmission timing adjustment and the second transmission timingadjustment is used to determine a length of a time interval from thefirst time to the second time; the third information is used todetermine the second time, and the third information is transmittedthrough the air interface.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that at least the latter of theminimum step-size corresponding to the first transmission timingadjustment and the minimum step-size corresponding to the secondtransmission timing adjustment is related to a sub-carrier spacing ofsub-carriers occupied by the first radio signal.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the Q2 candidate adjustmentsare obtained by multiplying Q2 candidate integers respectively by theminimum step-size corresponding to the second transmission timingadjustment, and the Q2 candidate integers are obtained by subtracting afirst threshold from Q2 consecutive non-negative integers; the secondinformation is used in the Q2 consecutive non-negative integers toindicate consecutive non-negative integers that obtain the secondtransmission timing adjustment, and the first threshold is related to atleast one of the Q2 or the first transmission timing adjustment.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the second receiver alsoreceives fourth information; wherein the Q2 consecutive non-negativeintegers belong to a first integer set, and the fourth information isused to determine the first integer set among X integer sets, the Xbeing a positive integer greater than 1; each of the X integer setscomprises a positive integer number of non-negative integer(s), the Xinteger sets being predefined, and the fourth information is transmittedthrough the air interface.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the Q1 candidate adjustmentsare predefined; or the Q1 candidate adjustments are obtained bymultiplying the Q1 candidate integers respectively by the minimumstep-size corresponding to the first transmission timing adjustment; thefirst information indicates a candidate integer generating the firsttransmission timing adjustment in the Q1 candidate integers, the Q1candidate integers all being non-negative values.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the first receiver alsoreceives fifth information; wherein the fifth information is used todetermine whether the minimum step-size corresponding to the firsttransmission timing adjustment is equal to the minimum step-sizecorresponding to the second transmission timing adjustment, and thefifth information is transmitted through the air interface.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the first transmitter alsotransmits a second radio signal; wherein the second radio signal is usedto determine at least one of a start time for a transmission of thefirst information or a start time for a transmission of the secondinformation, and the second radio signal is transmitted through the airinterface.

The present disclosure provides a second-type communication node forwireless communication, comprising:

a second transmitter, transmitting first information;

a third transmitter, transmitting second information; and

a third receiver, receiving a first radio signal;

wherein the first information is used to determine a first transmissiontiming adjustment, and the second information is used to determine asecond transmission timing adjustment; a start time for a transmissionof the first radio signal is related to the first transmission timingadjustment and the second transmission timing adjustment; a minimumstep-size corresponding to the first transmission timing adjustment isnot equal to a minimum step-size corresponding to the secondtransmission timing adjustment; the first information, the secondinformation and the first radio signal are all transmitted through anair interface.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the first transmissiontiming adjustment is one of Q1 candidate adjustments, and the secondtransmission timing adjustment is one of Q2 candidate adjustments; theminimum step-size corresponding to the first transmission timingadjustment is equal to a minimum value of an absolute value of adifference of any two of the Q1 candidate adjustments, and the minimumstep-size corresponding to the second transmission timing adjustment isequal to a minimum value of an absolute value of a difference of any twoof the Q2 candidate adjustments, both the Q1 and the Q2 being positiveintegers greater than 1.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the third transmitter alsotransmits third information; wherein the start time for the transmissionof the first radio signal is a first time, and an expected start timefor a reception of the first radio signal is a second time; a sum of thefirst transmission timing adjustment and the second transmission timingadjustment is used to determine a length of a time interval from thefirst time to the second time; the third information is used todetermine the second time, and the third information is transmittedthrough the air interface.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that at least the latter of theminimum step-size corresponding to the first transmission timingadjustment and the minimum step-size corresponding to the secondtransmission timing adjustment is related to a sub-carrier spacing ofsub-carriers occupied by the first radio signal.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the Q2 candidate adjustmentsare obtained by multiplying Q2 candidate integers respectively by theminimum step-size corresponding to the second transmission timingadjustment, and the Q2 candidate integers are obtained by subtracting afirst threshold from Q2 consecutive non-negative integers; the secondinformation is used in the Q2 consecutive non-negative integers toindicate consecutive non-negative integers that obtain the secondtransmission timing adjustment, and the first threshold is related to atleast one of the Q2 or the first transmission timing adjustment.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the third transmitter alsotransmits fourth information; wherein the Q2 consecutive non-negativeintegers belong to a first integer set, and the fourth information isused to determine the first integer set in X integer sets, the X being apositive integer greater than 1; each of the X integer sets comprises apositive integer number of non-negative integer(s), the X integer setsbeing predefined, and the fourth information is transmitted through theair interface.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the Q1 candidate adjustmentsare predefined; or the Q1 candidate adjustments are obtained bymultiplying the Q1 candidate integers respectively by the minimumstep-size corresponding to the first transmission timing adjustment; thefirst information indicates a candidate integer generating the firsttransmission timing adjustment in the Q1 candidate integers, the Q1candidate integers all being non-negative values.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the second transmitter alsotransmits fifth information; wherein the fifth information is used todetermine whether the minimum step-size corresponding to the firsttransmission timing adjustment is equal to the minimum step-sizecorresponding to the second transmission timing adjustment, and thefifth information is transmitted through the air interface.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the third receiver alsoreceives a second radio signal; wherein the second radio signal is usedto determine at least one of a start time for a transmission of thefirst information or a start time for a transmission of the secondinformation, and the second radio signal is transmitted through the airinterface.

In one embodiment, the present disclosure is advantageous in thefollowing aspects:

the present disclosure provides a two-stage TA adjustment method; thefirst stage is adjusting the TA according to a coarse granularity so asto ensure the coarse synchronization of uplink transmissions, and thesecond stage is adjusting the TA according to a fine granularity so asto ensure the uplink fine synchronization (the general synchronizationerror is within the scope of the cyclic prefix). This method can reducethe overhead and complexity of TA adjustment while ensuring theflexibility of base station scheduling.

The two-stage TA adjustment method provided in the present disclosurealso supports the network in notifying a reference TA adjustment (suchas satellite-based height and a delay in a Feeder Link, etc.), and thenusing a traditional TA adjustment signaling to fine tune the referenceTA, which can greatly reduce the signaling overhead of TA adjustment andtry to maintain the existing design in 5G NR at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present disclosure willbecome more apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings:

FIG. 1 illustrates a flowchart of first information, second informationand a first radio signal according to one embodiment of the presentdisclosure;

FIG. 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure;

FIG. 3 illustrates a schematic diagram of a radio protocol architectureof a user plane and a control plane according to one embodiment of thepresent disclosure;

FIG. 4 illustrates a schematic diagram of a first-type communicationnode and a second-type of communication node according to one embodimentof the present disclosure;

FIG. 5 illustrates a flow chart of radio signal transmission accordingto one embodiment of the present disclosure;

FIG. 6 illustrates a flow chart of radio signal transmission accordingto another embodiment of the present disclosure;

FIG. 7 illustrates a schematic diagram of the relationship between Q1candidate adjustments and Q2 candidate adjustments according to oneembodiment of the present disclosure;

FIG. 8 illustrates a schematic diagram of the relationship between afirst time and a second time according to one embodiment of the presentdisclosure.

FIG. 9 illustrates a schematic diagram of the relations among theminimum step-size corresponding to a first transmission timingadjustment, the minimum step-size corresponding to a second transmissiontiming adjustment and a sub-carrier spacing of sub-carriers occupied bya first radio signal according to one embodiment of the presentdisclosure;

FIG. 10 illustrates a schematic diagram of obtaining Q2 candidateadjustments according to one embodiment of the present disclosure;

FIG. 11 illustrates a schematic diagram of X integer sets according toone embodiment of the present disclosure;

FIG. 12 illustrates a schematic diagram of the relationship between Q1candidate adjustments and Q1 candidate integers according to oneembodiment of the present disclosure;

FIG. 13 illustrates a schematic diagram of the relations among a starttime for a transmission of first information, a start time for atransmission of second information and a second radio signal accordingto one embodiment of the present disclosure;

FIG. 14 illustrates a structure block diagram of a processing device ina first-type communication node according to one embodiment of thepresent disclosure;

FIG. 15 illustrates a structure block diagram of a processing device ina second-type communication node according to one embodiment of thepresent disclosure;

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below infurther details in conjunction with the drawings. It should be notedthat the embodiments of the present disclosure and the characteristicsof the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of transmission of firstinformation, second information, and a first radio signal according toone embodiment of the present disclosure, as shown in FIG. 1. In FIG. 1,each box represents a step. In Embodiment 1, the first-typecommunication node in the present disclosure first receives firstinformation, then receives second information, and then transmits afirst radio signal; wherein the first information is used to determine afirst transmission timing adjustment, the second information is used todetermine a second transmission timing adjustment, and a start time fora transmission of the first radio signal is related to the firsttransmission timing adjustment and the second transmission timingadjustment; a minimum step-size corresponding to the first transmissiontiming adjustment is not equal to a minimum step-size corresponding tothe second transmission timing adjustment; the first information, thesecond information and the first radio signal are all transmittedthrough an air interface.

In one embodiment, a transmitter of the first radio signal assumes thatan uplink timing of a radio signal transmitted before the secondinformation received through the air interface is accurate.

In one embodiment, a transmitter of the first radio signal assumes thata radio signal transmitted before the second information is receivedthrough the air interface will not cause interference to a radio signaltransmitted by other first-type communication nodes.

In one embodiment, a transmitter of the first radio signal assumes thata radio signal transmitted before the second information is receivedthrough the air interface will not cause Inter-Carrier Interference(ICI).

In one embodiment, a receiver of the first radio signal uses longersearch time than when receiving the first radio signal to receive aradio signal before the second information through the air interface.

In one embodiment, before receiving the second information, thefirst-type communication node will not transmit any radio signal otherthan a Physical Random Access Channel (PRACH) through the air interface.

In one embodiment, before receiving the second information, thefirst-type communication node transmits a radio signal other than aPhysical Random Access Channel (PRACH) through the air interface.

In one embodiment, a receiver of the first radio signal avoidsinterference between uplink transmissions from different first-typecommunication nodes by scheduling before transmitting the secondinformation.

In one embodiment, a receiver of the first radio signal determines astart time of a radio signal transmitted through the air interfacebefore the second information only according to the first transmissiontiming adjustment.

In one embodiment, the first transmission timing adjustment and thesecond transmission timing adjustment are both real numbers in the caseof units are respectively given.

In one embodiment, the minimum step-size corresponding to the firsttransmission timing adjustment and the minimum step-size correspondingto the second transmission timing adjustment are all real numbers in thecase of units are respectively given.

In one embodiment, the first transmission timing adjustment is anon-negative number.

In one embodiment, the second transmission timing adjustment is anon-negative number.

In one embodiment, the second transmission timing adjustment is anegative number.

In one embodiment, the second transmission timing adjustment is equal to0.

In one embodiment, a unit of measurement of the minimum step-sizecorresponding to the first transmission timing adjustment is the same asthat of the minimum step-size corresponding to the second transmissiontiming adjustment.

In one embodiment, a unit of measurement of the minimum step-sizecorresponding to the first transmission timing adjustment is differentfrom that of the minimum step-size corresponding to the secondtransmission timing adjustment.

In one embodiment, a unit of measurement of the first transmissiontiming adjustment is the same as that of the second transmission timingadjustment.

In one embodiment, a unit of measurement of the first transmissiontiming adjustment is different from that of the second transmissiontiming adjustment.

In one embodiment, a unit of measurement of the first transmissiontiming adjustment is the same as that of the minimum step-sizecorresponding to the first transmission timing adjustment.

In one embodiment, a unit of measurement of the second transmissiontiming adjustment is the same as that of the minimum step-sizecorresponding to the second transmission timing adjustment.

In one embodiment, the first transmission timing adjustment is measuredby millisecond.

In one embodiment, the minimum step-size corresponding to the firsttransmission timing adjustment is measured by millisecond.

In one embodiment, the first transmission timing adjustment is measuredby microsecond.

In one embodiment, the minimum step-size corresponding to the firsttransmission timing adjustment is measured by microsecond.

In one embodiment, the second transmission timing adjustment is measuredby microsecond.

In one embodiment, the minimum step-size corresponding to the secondtransmission timing adjustment is measured by microsecond.

In one embodiment, the second transmission timing adjustment is measuredby millisecond.

In one embodiment, the minimum step-size corresponding to the secondtransmission timing adjustment is measured by millisecond.

In one embodiment, the phrase that the minimum step-size correspondingto the first transmission timing adjustment is not equal to the minimumstep-size corresponding to the second transmission timing adjustmentrefers to: when the minimum step-size corresponding to the firsttransmission timing adjustment and the minimum step-size correspondingto the second transmission timing adjustment are converted into a sameunit of measurement, the minimum step-size corresponding to the firsttransmission timing adjustment is not equal to the minimum step-sizecorresponding to the second transmission timing adjustment.

In one embodiment, when the minimum step-size corresponding to the firsttransmission timing adjustment and the minimum step-size correspondingto the second transmission timing adjustment are converted into a sameunit of measurement, the minimum step-size corresponding to the firsttransmission timing adjustment is greater than the minimum step-sizecorresponding to the second transmission timing adjustment.

In one embodiment, when the minimum step-size corresponding to the firsttransmission timing adjustment and the minimum step-size correspondingto the second transmission timing adjustment are converted into a sameunit of measurement, the minimum step-size corresponding to the firsttransmission timing adjustment is smaller than the minimum step-sizecorresponding to the second transmission timing adjustment.

In one embodiment, when the first transmission timing adjustment and thesecond transmission timing adjustment are converted into a same unit ofmeasurement, the first transmission timing adjustment is greater thanthe second transmission timing adjustment.

In one embodiment, when the first transmission timing adjustment and thesecond transmission timing adjustment are converted into a same unit ofmeasurement, the first transmission timing adjustment is smaller thanthe second transmission timing adjustment.

In one embodiment, the first information indicates the firsttransmission timing adjustment.

In one embodiment, the second information indicates the secondtransmission timing adjustment.

In one embodiment, the minimum step-size corresponding to the firsttransmission timing adjustment is an absolute difference of minimumchange that the first transmission timing adjustment can afford.

In one embodiment, the minimum step-size corresponding to the secondtransmission timing adjustment is an absolute difference of minimumchange that the second transmission timing adjustment can afford.

In one embodiment, the first information is transmitted through aPhysical Broadcast Channel (PBCH).

In one embodiment, the first information comprises one or more Fields ofa Master Information Block (MIB).

In one embodiment, the first information is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the first information is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the first information comprises one or more Fields ofa System Information Block (SIB).

In one embodiment, the first information comprises one or more Fields ofRemaining System Information (RMSI).

In one embodiment, the first information comprises all or part of aRadio Resource Control (RRC) signaling.

In one embodiment, the first information comprises all or part of aRandom Access Response (RAR).

In one embodiment, the first information comprises all or part of Msg-2(Message-2 in random access process).

In one embodiment, the first information comprises all or part of TimingAdvance (TA) command.

In one embodiment, the first information comprises all or part of aMedium Access Control (MAC) signaling.

In one embodiment, the first information comprises all or part of a MACProtocol Data Unit (PDU).

In one embodiment, the second information is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the second information is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the second information comprises all or part of aRandom Access Response (RAR).

In one embodiment, the second information comprises all or part of Msg-2(Message-2 in random access process).

In one embodiment, the second information comprises all or part of aTiming Advance (TA) update.

In one embodiment, the second information comprises all or part of aMedium Access Control (MAC) signaling.

In one embodiment, the second information comprises all or part of a MACControl Element (CE).

In one embodiment, the first radio signal is transmitted through anUplink Shared Channel (UL-SCH).

In one embodiment, the first radio signal is transmitted through aPhysical Uplink Shared Channel (PUSCH).

In one embodiment, the first radio signal carries all or part of Msg-3(Message-3 in random access process).

In one embodiment, the first radio signal is generated by a first bitblock successively through Segmentation, Channel Coding, Rate Matching,Concatenation, Scrambling, Modulation, Layer Mapping, Precoding,Resource Mapping, Baseband Signal Generation and Upconversion, and thefirst bit block comprises all or part of bits in a Transport Block.

In one embodiment, the start time for the transmission of the firstradio signal is linearly related to the first transmission timingadjustment and the second transmission timing adjustment.

In one embodiment, the start time for the transmission of the firstradio signal is positively linear with the first transmission timingadjustment.

In one embodiment, the start time for the transmission of the firstradio signal is negatively linear with the first transmission timingadjustment.

In one embodiment, the start time for the transmission of the firstradio signal is positively linear with the second transmission timingadjustment.

In one embodiment, the start time for the transmission of the firstradio signal is negatively linear with the second transmission timingadjustment.

In one embodiment, the first transmission timing adjustment and thesecond transmission timing adjustment determine the start time for thetransmission of the first radio signal through a given mappingrelationship.

In one embodiment, the air interface is wireless.

In one embodiment, the air interface comprises a wireless channel.

In one embodiment, the air interface is an interface between asecond-type communication node and a first-type communication node.

In one embodiment, the air interface is a Uu interface.

In one embodiment, the first transmission timing adjustment is relatedto a height of a receiver of the first radio signal.

In one embodiment, the first transmission timing adjustment is relatedto a distance between a receiver of the first radio signal and atransmitter of the first radio signal.

In one embodiment, the second transmission timing adjustment is relatedto a height of a receiver of the first radio signal.

In one embodiment, the second transmission timing adjustment is relatedto a distance between a receiver of the first radio signal and atransmitter of the first radio signal.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architectureaccording to the present disclosure, as shown in FIG. 2. FIG. 2illustrates the network architecture 200 of NR 5G, Long-Term Evolution(LTE) and Long-Term Evolution Advanced (LTE-A). The NR 5G or LTE networkarchitecture 200 may be called an Evolved Packet System (EPS) 200. TheEPS 200 may comprise one or more UEs 201, an NG-RAN 202, an EvolvedPacket Core/5G-Core Network (EPC/5G-CN) 210, a Home Subscriber Server(HSS) 220 and an Internet Service 230. The EPS 200 may be interconnectedwith other access networks. For simple description, theentities/interfaces are not shown. As shown in FIG. 2, the EPS providespacket switching services. Those skilled in the art will find it easy tounderstand that various concepts presented throughout the presentdisclosure can be extended to networks providing circuit switchingservices or other cellular networks. The NG-RAN comprises an NR node B(gNB) 203 and other gNBs 204. The gNB 203 provides UE 201 oriented userplane and control plane protocol terminations. The gNB 203 may beconnected to other gNBs 204 via an Xn interface (for example, backhaul).The gNB 203 may also be referred as a base station, a base transceiverstation, a radio base station, a radio transceiver, a transceiverfunction, a Basic Service Set (BSS), an Extended Service Set (ESS), aTransmission and Reception Point (TRP), or some other suitable terms. Inan NTN network, gNB 203 may be a satellite or a territorial base stationrelayed through a satellite. The gNB 203 provides an access point to theEPC/5G-CN 210 for the UE 201. Examples of UE 201 include cellularphones, smart phones, Session Initiation Protocol (SIP) phones, laptopcomputers, Personal Digital Assistant (PDA), Satellite Radios, GlobalPositioning Systems (GPSs), multimedia devices, video devices, digitalaudio players (for example, MP3 players), cameras, game consoles,unmanned aerial vehicles (UAV), air vehicles, narrow-band physicalnetwork devices, machine-type communication devices, land vehicles,automobiles, wearable devices, or any other similar functional devices.Those skilled in the art also can call the UE 201 a mobile station, asubscriber station, a mobile unit, a subscriber unit, a wireless unit, aremote unit, a mobile device, a wireless device, a radio communicationdevice, a remote device, a mobile subscriber station, an accessterminal, a mobile terminal, a wireless terminal, a remote terminal, ahandset, a user proxy, a mobile client, a client or some otherappropriate terms. The gNB 203 is connected to the EPC/5G-CN 210 via anS1/NG interface. The EPC/5G-CN 210 comprises a Mobility ManagementEntity/Authentication Management Field/User Plane Function (MME/AMF/UPF)211, other MMEs/AMFs/UPFs 214, a Service Gateway (S-GW) 212 and a PacketDate Network Gateway (P-GW) 213. The MME/AMF/UPF 211 is a control nodefor processing a signaling between the UE 201 and the EPC/5G-CN 210.Generally, the MME/AMF/UPF 211 provides bearer and connectionmanagement. All user Internet Protocol (IP) packets are transmittedthrough the S-GW 212, the S-GW 212 is connected to the P-GW 213. TheP-GW 213 provides UE IP address allocation and other functions. The P-GW213 is connected to the Internet Service 230. The Internet Service 230comprises IP services corresponding to operators, specifically includingInternet, Intranet, IP Multimedia Subsystem (IMS) and Packet SwitchingStreaming Services (PSS).

In one embodiment, the UE 201 corresponds to the first-typecommunication node in the present disclosure.

In one embodiment, the UE 201 supports transmission in a Non-TerrestrialNetwork (NTN).

In one embodiment, the gNB 203 corresponds to the second-typecommunication node in the present disclosure.

In one embodiment, the gNB 203 supports transmission in aNon-Terrestrial Network (NTN).

Embodiment 3

Embodiment 3 illustrates a schematic diagram of an example of a radioprotocol architecture of a user plane and a control plane according toone embodiment of the present disclosure, as shown in FIG. 3. FIG. 3 isa schematic diagram illustrating an embodiment of a radio protocolarchitecture of a user plane and a control plane. In FIG. 3, the radioprotocol architecture for a first-type communication node (UE) and asecond-type communication node (gNB, eNB or a satellite in NTN) isrepresented by three layers, which are a layer 1, a layer 2 and a layer3, respectively. The layer 1 (L1) is the lowest layer and performssignal processing functions of various PHY layers. The L1 is called PHY301 in the present disclosure. The layer 2 (L2) 305 is above the PHY301, and is in charge of the link between a first-type communicationnode and a second-type communication node via the PHY 301. In the userplane, L2 305 comprises a Medium Access Control (MAC) sublayer 302, aRadio Link Control (RLC) sublayer 303 and a Packet Data ConvergenceProtocol (PDCP) sublayer 304. All the three sublayers terminate at asecond-type communication node of the network side. Although notdescribed in FIG. 3, a first-type communication node may compriseseveral higher layers above the L2 305, such as a network layer (e.g.,IP layer) terminated at a P-GW of the network side and an applicationlayer terminated at the other side of the connection (e.g., a remote UE,a server, etc.). The PDCP sublayer 304 provides multiplexing amongvariable radio bearers and logical channels. The PDCP sublayer 304 alsoprovides a header compression for a higher-layer packet so as to reducea radio transmission overhead, provides security by encrypting a packet,and provides support for a first-type communication node handoverbetween second-type communication nodes. The RLC sublayer 303 providessegmentation and reassembling of a higher-layer packet, retransmissionof a lost packet, and reordering of a data packet so as to compensatethe disordered receiving caused by HARQ. The MAC sublayer 302 providesmultiplexing between a logical channel and a transport channel. The MACsublayer 302 is also responsible for allocating between first-typecommunication nodes various radio resources (e.g., resource block) in acell. The MAC sublayer 302 is also responsible for HARQ operation. Inthe control plane, the radio protocol architecture of a first-typecommunication node and a second-type communication node is almost thesame as the radio protocol architecture on the PHY 301 and the L2 305,but there is no header compression for the control plane. The controlplane also comprises a Radio Resource Control (RRC) sublayer 306 in thelayer 3 (L3). The RRC sublayer 306 is responsible for obtaining radioresources (i.e., radio bearer) and configuring the lower layer using anRRC signaling between a second-type communication node and a first-typecommunication node.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the first-type communication node in the presentdisclosure.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the second-type communication node in the presentdisclosure.

In one embodiment, the first information in the present disclosure isgenerated by the RRC 306.

In one embodiment, the first information in the present disclosure isgenerated by the MAC 302.

In one embodiment, the second information in the present disclosure isgenerated by the RRC 306.

In one embodiment, the second information in the present disclosure isgenerated by the MAC 302.

In one embodiment, the second information in the present disclosure isgenerated by the PHY 301.

In one embodiment, the first radio signal in the present disclosure isgenerated by the RRC 306.

In one embodiment, the first radio signal in the present disclosure isgenerated by the PHY 301.

In one embodiment, the third information in the present disclosure isgenerated by the RRC 306.

In one embodiment, the third information in the present disclosure isgenerated by the MAC 302.

In one embodiment, the third information in the present disclosure isgenerated by the PHY 301.

In one embodiment, the fourth information in the present disclosure isgenerated by the RRC 306.

In one embodiment, the fourth information in the present disclosure isgenerated by the MAC 302.

In one embodiment, the fourth information in the present disclosure isgenerated by the PHY 301.

In one embodiment, the fifth information in the present disclosure isgenerated by the RRC 306.

In one embodiment, the fifth information in the present disclosure isgenerated by the MAC 302.

In one embodiment, the second radio signal in the present disclosure isgenerated by the RRC 306.

In one embodiment, the second radio signal in the present disclosure isgenerated by the PHY 301.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a base station and agiven UE according to the present disclosure, as shown in FIG. 4. FIG. 4is a block diagram of a gNB/eNB 410 in communication with a UE 450 in anaccess network.

The UE 450 comprises a controller/processor 490, a memory 480, areceiving processor 452, a transmitter/receiver 456, a transmittingprocessor 455 and a data source 467, a transmitter/receiver 456 and anantenna 460. A higher layer packet is provided to thecontroller/processor 490 by the data source 467, thecontroller/processor 490 provides header compression, encryption, packetsegmentation and reordering, and a multiplexing between a logicalchannel and a transport channel so as to implement the L2 layerprotocols used for the user plane and the control plane; the higherlayer packet may comprise data or control information, such as a DL-SCHand a UL-SCH; the transmitting processor 455 performs various signaltransmitting processing functions used for the L1 layer (that is, PHY),including coding, interleaving, scrambling, modulation, powercontrol/allocation and generation of physical layer control signaling.The receiving processor 452 performs various signal receiving processingfunctions used for the L1 layer (that is, PHY), including decoding,deinterleaving, descrambling, demodulation, deprecoding and extractionof physical layer control signaling. The transmitter 456 is used toconvert a baseband signal provided by the transmitting processor 455into a radio-frequency signal and transmit it via the antenna 460, andthe receiver 456 is used to convert a radio-frequency signal receivedvia the antenna 460 into a baseband signal and provide it to thereceiving processor 452.

The base station (410) comprises a controller/processor 440, a memory430, a receiving processor 412, a transmitter/receiver 416, atransmitting processor 415, and an antenna 420. A higher layer packet isprovided to the controller/processor 440, and the controller/processor440 provides header compression and decompression, encryption anddecoding, packet segmentation and reordering, as well as a multiplexingbetween a logical channel and a transport channel so as to implement theL2 layer protocols used for the user plane and the control plane. Thehigher layer packet may comprise data or control information, such as aDL-SCH or a UL-SCH. The transmitting processor 415 performs varioussignal transmitting processing functions used for the L1 layer (that is,PHY), including coding, interleaving, scrambling, modulation, powercontrol/allocation, precoding and generation of physical layersignalings (including a synchronization signal, a reference signal andetc.). The receiving processor 412 performs various signal receiving andprocessing functions used for the L1 layer (that is, PHY), includingdecoding, deinterleaving, descrambling, demodulation, deprecoding andextraction of physical layer signaling. The transmitter 416 is used toconvert a baseband signal provided by the transmitting processor 415into a radio-frequency signal and transmit it via the antenna 420, andthe receiver 416 is used to convert a radio-frequency signal receivedvia the antenna 420 into a baseband signal and provide it to thereceiving processor 412.

In Downlink (DL) transmission, a higher packet is provided to thecontroller/processor 440. The controller/processor 440 implementsfunctions of L2 layer. In DL transmission, the controller/processor 440provides header compression, encryption, packet segmentation andreordering, multiplexing between a logical channel and a transportchannel, and radio resources allocation for the UE 450 based on variouspriorities. The controller/processor 440 is also responsible for HARQoperation, retransmission of a lost packet, and a signaling to the UE450, such as the generation of first information, second information,third information, fourth information and fifth information in thepresent disclosure. The transmitting processor 415 implements varioussignal processing functions on the L1 layer (i.e., physical layer),including coding and interleaving to ensure an FEC (Forward ErrorCorrection) at the UE 450 side, modulating a baseband signal based onvarious modulation schemes (e.g., Binary Phase Shift Keying (BPSK),Quadrature Phase Shift Keying (QPSK)), dividing modulation symbols intoparallel streams and mapping each stream into a correspondingmulti-carrier subcarrier and/or a multi-carrier symbol, which are thentransmitted in the form of a radio-frequency signal by the transmittingprocessor 415 mapping to the antenna 420 via the transmitter 416. Thefirst information, the second information, the third information, thefourth information and the fifth information in the present disclosureare mapped to target air interface resources by the transmittingprocessor 415 in the corresponding channel of the physical layer andthen transmitted in the form of a radio-frequency signal by thetransmitter 416 mapped to the antenna 420. At the receiving end, eachreceiver 456 receives a radio-frequency signal via its correspondingantenna 460, recovers baseband information modulated to aradio-frequency carrier, and supplies baseband information to thereceiving processor 452. The receiving processor 452 implements varioussignal receiving and processing functions of the L1 layer. The signalreceiving and processing functions include receiving a physical layersignal carrying the first information, the second information, the thirdinformation, the fourth information and the fifth information in thepresent disclosure, demodulating based on various modulation schemes(e.g., BPSK, and QPSK) via a multi-carrier symbol in a multi-carriersymbol stream, then decoding and de-interleaving to recover a data or acontrol signal transmitted by the gNB 410 in a physical channel, andproviding the data and the control signal to the controller/processor490. The controller/processor 490 implements functions of L2 layer. Thecontroller/processor can be connected to a memory 480 that storesprogram code and data. The memory 480 can be called a computer readablemedium.

In uplink (UL) transmission, a data source 467 is used to provide afirst radio signal in the present disclosure to the controller/processor490. The data source 467 represents all protocol layers above the L2layer. The controller/processor 490 performs the L2 layer protocol forthe user plane and the control plane by providing header compression,encryption, packet segmentation and reordering, as well as multiplexingbetween a logic channel and a transport channel through radio resourcesallocation based on the gNB 410. The controller/processor 490 is also incharge of HARQ operation, retransmission of a lost packet, and asignaling to the gNB 410. The transmitting processor 455 performsvarious signal processing functions on the layer L1 (i.e., the physicallayer). The signal transmission processing functions include coding andinterleaving to facilitate Forward Error Correction (FEC) at the UE 350,modulating a baseband signal based on various modulation schemes,dividing modulation symbols into parallel streams and mapping eachstream into a corresponding multi-carrier subcarrier and/or amulti-carrier symbol, which are then transmitted by the transmittingprocessor 455 in the form of a radio-frequency signal via thetransmitter 456 mapping to the antenna 460, and a signal on the physicallayer (including a second radio signal in the disclosure) beinggenerated at the transmitting processor 455. The receiver 416 receives aradio-frequency signal via its corresponding antenna 420, and eachreceiver 416 recovers baseband information modulated to aradio-frequency carrier, and supplies the baseband information to thereceiving processor 412. The receiving processor 412 performs varioussignal receiving and processing functions used for the L1 layer (i.e.,physical layer), including obtaining a multi-carrier symbol stream,demodulating multi-carrier symbols in the multi-carrier symbol streambased on various modulation schemes, then decoding and de-interleavingto recover a data and/or a control signal originally transmitted by theUE 450 in a physical channel. The data and/or the control signal arethen provided to the controller/processor 440. The controller/processor440 performs functions of L2 layer. The controller/processor can beconnected to a memory 430 that stores program code and data. The memory430 may be called a computer readable medium.

In one embodiment, the UE 450 corresponds to the first-typecommunication node in the present disclosure.

In one embodiment, the gNB 410 corresponds to the second-typecommunication node in the present disclosure.

In one embodiment, the UE 450 comprises at least one processor and atleast one memory. The at least one memory comprises computer programcodes; the at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor.The UE 450 at least receives first information; receives secondinformation; and transmits a first radio signal; wherein the firstinformation is used to determine a first transmission timing adjustment,the second information is used to determine a second transmission timingadjustment, and a start time for a transmission of the first radiosignal is related to the first transmission timing adjustment and thesecond transmission timing adjustment; a minimum step-size correspondingto the first transmission timing adjustment is not equal to a minimumstep-size corresponding to the second transmission timing adjustment;the first information, the second information and the first radio signalare all transmitted through an air interface.

In one embodiment, the UE 450 comprises a memory that stores a computerreadable instruction program. The computer readable instruction programgenerates actions when executed by at least one processor, including:receiving first information; receiving second information; andtransmitting a first radio signal; wherein the first information is usedto determine a first transmission timing adjustment, the secondinformation is used to determine a second transmission timingadjustment, and a start time for a transmission of the first radiosignal is related to the first transmission timing adjustment and thesecond transmission timing adjustment; a minimum step-size correspondingto the first transmission timing adjustment is not equal to a minimumstep-size corresponding to the second transmission timing adjustment;the first information, the second information and the first radio signalare all transmitted through an air interface.

In one embodiment, the eNB 410 comprises: at least one processor and atleast one memory, the at least one memory comprises computer programcodes; the at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor.The gNB 410 at least: transmits first information; transmits secondinformation; and receives a first radio signal; wherein the firstinformation is used to determine a first transmission timing adjustment,the second information is used to determine a second transmission timingadjustment, and a start time for a transmission of the first radiosignal is related to the first transmission timing adjustment and thesecond transmission timing adjustment; a minimum step-size correspondingto the first transmission timing adjustment is not equal to a minimumstep-size corresponding to the second transmission timing adjustment;the first information, the second information and the first radio signalare all transmitted through an air interface.

In one embodiment, the eNB 410 comprises a memory that stores a computerreadable instruction program. The computer readable instruction programgenerates actions when executed by at least one processor, including:transmitting first information; transmitting second information; andreceiving a first radio signal; wherein the first information is used todetermine a first transmission timing adjustment, the second informationis used to determine a second transmission timing adjustment, and astart time for a transmission of the first radio signal is related tothe first transmission timing adjustment and the second transmissiontiming adjustment; a minimum step-size corresponding to the firsttransmission timing adjustment is not equal to a minimum step-sizecorresponding to the second transmission timing adjustment; the firstinformation, the second information and the first radio signal are alltransmitted through an air interface.

In one embodiment, the receiver 456 (including the antenna 460), thereceiving processor 452 and the controller/processor 490 are used toreceive the first information in the present disclosure.

In one embodiment, the receiver 456 (including the antenna 460), thereceiving processor 452 and the controller/processor 490 are used toreceive the second information in the present disclosure.

In one embodiment, the receiver 456 (including the antenna 460), thereceiving processor 452 and the controller/processor 490 are used toreceive the third information in the present disclosure.

In one embodiment, the receiver 456 (including the antenna 460), thereceiving processor 452 and the controller/processor 490 are used toreceive the fourth information in the present disclosure.

In one embodiment, the receiver 456 (including the antenna 460), thereceiving processor 452 and the controller/processor 490 are used toreceive the fifth information in the present disclosure.

In one embodiment, the transmitter 456 (including the antenna 460), thetransmitting processor 455 and the controller/processor 490 are used totransmit the first radio signal in the present disclosure.

In one embodiment, the transmitter 456 (including the antenna 460), andthe transmitting processor 455 are used to transmit the second radiosignal in the present disclosure.

In one embodiment, the transmitter 416 (including the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used totransmit the first information in the present disclosure.

In one embodiment, the transmitter 416 (including the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used totransmit the second information in the present disclosure.

In one embodiment, the transmitter 416 (including the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used totransmit the third information in the present disclosure.

In one embodiment, the transmitter 416 (including the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used totransmit the fourth information in the present disclosure.

In one embodiment, the transmitter 416 (including the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used totransmit the fifth information in the present disclosure.

In one embodiment, the receiver 416 (including the antenna 420), thereceiving processor 412 and the controller/processor 440 are used toreceive the first radio signal in the present disclosure.

In one embodiment, the receiver 416 (including the antenna 420) and thereceiving processor 412 are used to receive the second radio signal inthe present disclosure.

Embodiment 5

Embodiment 5 illustrates a radio signal transmission flow chartaccording to one embodiment in the present disclosure, as shown in FIG.5. In FIG. 5, a second-type communication node N1 is a maintenance basestation of a serving cell of a first-type communication node U2, andsteps in the dotted box are optional.

The second-type communication node N1 transmits first information instep S11, receives a second radio signal in step S112, transmits fourthinformation in step S13, transmits second information in step S14,transmits third information in step S15, and receives a first radiosignal in step S16.

The first-type communication node U2 receives first information in stepS21, transmits a second radio signal in step S22, receives fourthinformation in step S23, receives second information in step S24,receives third information in step S25, and transmits a first radiosignal in step S26.

In Embodiment 5, the first information is used to determine a firsttransmission timing adjustment, the second information is used todetermine a second transmission timing adjustment, and a start time fora transmission of the first radio signal is related to the firsttransmission timing adjustment and the second transmission timingadjustment; a minimum step-size corresponding to the first transmissiontiming adjustment is not equal to a minimum step-size corresponding tothe second transmission timing adjustment; the first information, thesecond information and the first radio signal are all transmittedthrough an air interface; the start time for the transmission of thefirst radio signal is a first time, and an expected start time for areception of the first radio signal is a second time; a sum of the firsttransmission timing adjustment and the second transmission timingadjustment is used to determine a length of a time interval from thefirst time to the second time; the third information is used todetermine the second time, and the third information is transmittedthrough the air interface; the first transmission timing adjustment isone of Q1 candidate adjustments, and the second transmission timingadjustment is one of Q2 candidate adjustments; the minimum step-sizecorresponding to the first transmission timing adjustment is equal to aminimum value of an absolute value of a difference of any two of the Q1candidate adjustments, and the minimum step-size corresponding to thesecond transmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q2 candidate adjustments are obtained by multiplying Q2 candidateintegers respectively by the minimum step-size corresponding to thesecond transmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers; the second information is used in the Q2consecutive non-negative integers to indicate consecutive non-negativeintegers that obtain the second transmission timing adjustment, and thefirst threshold is related to at least one of the Q2 or the firsttransmission timing adjustment; the Q2 consecutive non-negative integersbelong to a first integer set, and the fourth information is used todetermine the first integer set in X integer sets, the X being apositive integer greater than 1; each of the X integer sets comprises apositive integer number of non-negative integer(s), the X integer setsbeing predefined, and the fourth information is transmitted through theair interface; the second radio signal is used to determine at least oneof a start time for a transmission of the first information or a starttime for a transmission of the second information, and the second radiosignal is transmitted through the air interface.

In one embodiment, at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

In one embodiment, the Q1 candidate adjustments are predefined; or theQ1 candidate adjustments are obtained by multiplying the Q1 candidateintegers respectively by the minimum step-size corresponding to thefirst transmission timing adjustment; the first information indicates acandidate integer generating the first transmission timing adjustment inthe Q1 candidate integers, the Q1 candidate integers all beingnon-negative values.

In one embodiment, the second information and the third information aretransmitted through a same physical channel.

In one embodiment, the second information and the third information aretransmitted through different physical channels.

In one embodiment, the second information and the third information bothcarry part of information of a RAR.

In one embodiment, the third information comprises an UL Grant of a RAR.

In one embodiment, the third information comprises one or more Fields ofDownlink Control Information (DCI).

In one embodiment, the third information is transmitted through aPhysical Downlink Control Channel (PDCCH).

In one embodiment, the third information indicates the second time.

In one embodiment, the third information is used by the first-typecommunication node to determine the second time.

In one embodiment, the fourth information and the third information aretransmitted through a same physical channel.

In one embodiment, the fourth information and the third information aretransmitted through different physical channels.

In one embodiment, the fourth information is used by the first-typecommunication node to determine the first integer set among X integersets.

In one embodiment, the fourth information indicates the first integerset among X integer sets.

In one embodiment, the fourth information is used to determine whetherthe first integer set corresponds to an SCG.

In one embodiment, the fourth information comprises all or part ofinformation of a higher-layer signaling.

In one embodiment, the fourth information comprises all or part ofinformation of an RRC signaling.

In one embodiment, the fourth information comprises all or part ofinformation of a MAC signaling.

In one embodiment, the fourth information is transmitted through aPDSCH.

In one embodiment, the fourth information is transmitted through aPDCCH.

In one embodiment, the fourth information comprises all or part ofinformation of a physical-layer signaling.

In one embodiment, the fourth information comprises all or part ofinformation of a DCI signaling.

Embodiment 6

Embodiment 6 illustrates a radio signal transmission flow chartaccording to another embodiment in the present disclosure, as shown inFIG. 6. In FIG. 6, a second-type communication node N3 is a maintenancebase station of a serving cell of a first-type communication node U4,and steps in the dotted box are optional.

The second-type communication node N3 receives a second radio signal instep S31, transmits fifth information in step S32, transmits fourthinformation in step S33, transmits first information in step S34,transmits second information in step S35, transmits third information instep S36, and receives a first radio signal in step S37.

The first-type communication node U4 transmits a second radio signal instep S41, receives fifth information in step S42, receives fourthinformation in step S43, receives first information in step S44,receives second information in step S45, receives third information instep S46, and transmits a first radio signal in step S47.

In Embodiment 6, the first information is used to determine a firsttransmission timing adjustment, the second information is used todetermine a second transmission timing adjustment, and a start time fora transmission of the first radio signal is related to the firsttransmission timing adjustment and the second transmission timingadjustment; a minimum step-size corresponding to the first transmissiontiming adjustment is not equal to a minimum step-size corresponding tothe second transmission timing adjustment; the first information, thesecond information and the first radio signal are all transmittedthrough an air interface; the first transmission timing adjustment isone of Q1 candidate adjustments, and the second transmission timingadjustment is one of Q2 candidate adjustments; the minimum step-sizecorresponding to the first transmission timing adjustment is equal to aminimum value of an absolute value of a difference of any two of the Q1candidate adjustments, and the minimum step-size corresponding to thesecond transmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the start time for the transmission of the first radio signal is afirst time, and an expected start time for a reception of the firstradio signal is a second time; a sum of the first transmission timingadjustment and the second transmission timing adjustment is used todetermine a length of a time interval between the first time and thesecond time; the third information is used to determine the second time,and the third information is transmitted through the air interface; theQ2 candidate adjustments are obtained by multiplying Q2 candidateintegers respectively by the minimum step-size corresponding to thesecond transmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers; the second information is used in the Q2consecutive non-negative integers to indicate consecutive non-negativeintegers that obtain the second transmission timing adjustment, and thefirst threshold is related to at least one of the Q2 or the firsttransmission timing adjustment; the Q2 consecutive non-negative integersbelong to a first integer set, and the fourth information is used todetermine the first integer set in X integer sets, the X being apositive integer greater than 1; each of the X integer sets comprises apositive integer number of non-negative integer(s), the X integer setsbeing predefined, and the fourth information is transmitted through theair interface; the fifth information is used to determine whether theminimum step-size corresponding to the first transmission timingadjustment is equal to the minimum step-size corresponding to the secondtransmission timing adjustment, and the fifth information is transmittedthrough the air interface; the second radio signal is used to determineat least one of a start time for a transmission of the first informationor a start time for a transmission of the second information, and thesecond radio signal is transmitted through the air interface.

In one embodiment, at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

In one embodiment, the Q1 candidate adjustments are predefined; or theQ1 candidate adjustments are obtained by multiplying the Q1 candidateintegers respectively by the minimum step-size corresponding to thefirst transmission timing adjustment; the first information indicates acandidate integer generating the first transmission timing adjustment inthe Q1 candidate integers, the Q1 candidate integers all beingnon-negative values.

In one embodiment, the second information and the third information aretransmitted through a same physical channel.

In one embodiment, the second information and the third information aretransmitted through different physical channels.

In one embodiment, the second information and the third information bothcarry part of information of a RAR.

In one embodiment, the third information comprises an UL Grant of a RAR.

In one embodiment, the third information comprises one or more Fields ofDownlink Control Information (DCI).

In one embodiment, the third information is transmitted through aPhysical Downlink Control Channel (PDCCH).

In one embodiment, the third information indicates the second time.

In one embodiment, the third information is used by the first-typecommunication node to determine the second time.

In one embodiment, the fourth information comprises all or part ofinformation of a higher-layer signaling.

In one embodiment, the fourth information comprises all or part ofinformation of an RRC signaling.

In one embodiment, the fourth information comprises all or part ofinformation of a MAC signaling.

In one embodiment, the fourth information is transmitted through aPDSCH.

In one embodiment, the fourth information is transmitted through aPDCCH.

In one embodiment, the fourth information comprises all or part ofinformation of a physical-layer signaling.

In one embodiment, the fourth information comprises all or part ofinformation of a DCI signaling.

In one embodiment, the fourth information and the third information aretransmitted through a same physical channel.

In one embodiment, the fourth information and the third information aretransmitted through different physical channels.

In one embodiment, the fourth information is used by the first-typecommunication node to determine the first integer set among X integersets.

In one embodiment, the fourth information indicates the first integerset among X integer sets.

In one embodiment, the fourth information is used to determine whetherthe first integer set corresponds to an SCG.

In one embodiment, the fifth information indicates that the minimumstep-size corresponding to the first transmission timing adjustment isequal to the minimum step-size corresponding to the second transmissiontiming adjustment.

In one embodiment, the fifth information is used to determine theminimum step-size corresponding to the first transmission timingadjustment among Y unequal candidate step-sizes, the Y being a positiveinteger greater than 1.

In one embodiment, the fifth information is used to determine theminimum step-size corresponding to the first transmission timingadjustment among Y unequal candidate step-sizes, the Y being a positiveinteger greater than 1, and the minimum step-size corresponding to thesecond transmission timing adjustment is equal to one of the Y unequalcandidate step-sizes.

In one embodiment, the fifth information indicates that whether areceiver of the first radio signal is a terrestrial base station or asatellite base station.

In one embodiment, the fifth information indicates that whether areceiver of the first radio signal is a terrestrial base station or asatellite.

In one embodiment, the fifth information indicates that whether theminimum step-size corresponding to the first transmission timingadjustment is applied to satellite communication.

In one embodiment, the fifth information indicates that whether theminimum step-size corresponding to the first transmission timingadjustment is equal to a step-size newly introduced in the currentversion or equal to an existing step-size in a previous version.

In one embodiment, the fifth information is transmitted through aPhysical Broadcast Channel (PBCH).

In one embodiment, the fifth information comprises one or more Fields ofa Master Information Block (MIB).

In one embodiment, the fifth information is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the fifth information is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the fifth information comprises one or more Fields ofa System Information Block (SIB).

In one embodiment, the fifth information comprises one or more Fields ofRemaining System Information (RMSI).

In one embodiment, the fifth information comprises all or part of aRadio Resource Control (RRC).

In one embodiment, the fifth information comprises all or part of aRandom Access Response (RAR).

In one embodiment, the fifth information comprises all or part of Msg-2(Message-2 in random access process).

In one embodiment, the fifth information and the first information aretransmitted through a same physical channel.

In one embodiment, the fifth information and the first information aretransmitted through different physical channels.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of a relationship betweenQ1 candidate adjustments and Q2 candidate adjustments according to oneembodiment of the present disclosure, as shown in FIG. 7. In FIG. 7, thehorizontal axis represents time length, the smallest rectangle filledwith cross lines represents a minimum step-size corresponding to a firsttransmission timing adjustment, and the smallest rectangle filled withslashes represents a minimum step-size corresponding to a secondtransmission timing adjustment.

In Embodiment 7, the first transmission timing adjustment in the presentdisclosure is one of Q1 candidate adjustments, and the secondtransmission timing adjustment in the present disclosure is one of Q2candidate adjustments; the minimum step-size corresponding to the firsttransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1;

In one embodiment, any two of the Q1 candidate adjustments are unequal.

In one embodiment, units of measurement of any two of the Q1 candidateadjustments are the same.

In one embodiment, any two of the Q2 candidate adjustments are unequal.

In one embodiment, units of measurement of any two of the Q2 candidateadjustments are the same.

In one embodiment, the Q1 candidate adjustments are arranged in order ofsize, and an absolute value of a difference of any two adjacentcandidate adjustments of the Q1 candidate adjustments is equal to theminimum step-size corresponding to the first transmission timingadjustment.

In one embodiment, the Q1 candidate adjustments are arranged in order ofsize, and there is an absolute value of a difference of two adjacentcandidate adjustments of the Q1 candidate adjustments being greater thanthe minimum step-size corresponding to the first transmission timingadjustment.

In one embodiment, the Q2 candidate adjustments are arranged in order ofsize, and an absolute value of a difference of any two adjacentcandidate adjustments of the Q2 candidate adjustments is equal to theminimum step-size corresponding to the second transmission timingadjustment.

In one embodiment, the Q2 candidate adjustments are arranged in order ofsize, and there is an absolute value of a difference of two adjacentcandidate adjustments of the Q2 candidate adjustments being greater thanthe minimum step-size corresponding to the second transmission timingadjustment.

In one embodiment, the Q1 candidate adjustments respectively correspondto heights of Q1 satellites.

In one embodiment, the Q1 candidate adjustments respectively correspondto delays from Q1 satellites to the ground plus a delay in a FeederLink.

In one embodiment, there is one of the Q1 candidate adjustments beingequal to 0.

In one embodiment, any of the Q1 candidate adjustments is a non-negativereal number.

In one embodiment, there is one of the Q2 candidate adjustments beingequal to 0.

In one embodiment, any of the Q2 candidate adjustments is a non-zeroreal number.

A start time for a transmission of the first radio signal in the presentdisclosure is related to the first transmission timing adjustment in thepresent disclosure and the second transmission timing adjustment in thepresent disclosure; a minimum step-size corresponding to the firsttransmission timing adjustment is not equal to a minimum step-sizecorresponding to the second transmission timing adjustment; the firsttransmission timing adjustment is one of Q1 candidate adjustments, andthe second transmission timing adjustment is one of Q2 candidateadjustments; the minimum step-size corresponding to the firsttransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1.

The first bit block in the present disclosure is used to generate X1modulation symbols, and the X1 modulation symbols correspond to X1resource elements respectively; the first radio signal in the presentdisclosure occupies X2 resource elements among the X1 resource elements;the first radio signal is generated by X2 modulation symbols among theX1 modulation symbols corresponding to the X2 resource elements, the X2being a positive integer and the X1 being a positive integer greaterthan the X2.

In one embodiment, there are also X3 resource elements among the X1resource elements (RE) occupied by a fourth radio signal among the K1radio signals, and there is no resource element belonging to the X2resource elements and the X3 resource elements at the same time.

In one embodiment, the first radio signal is punctured by one or moreradio signals other than the first radio signal among the K1 radiosignals.

In one embodiment, the first radio signal is pre-empted by one or moreradio signals other than the first radio signal among the K1 radiosignals.

In one embodiment, the X1 modulation symbols all adopt a same modulationscheme.

In one embodiment, the first radio signal is used to transmit a completeTransport Block (TB).

In one embodiment, the first radio signal is used to transmit all CodingBlocks in a TB.

In one embodiment, each of the X1 resource elements (RE) occupies asub-carrier in frequency domain and a multi-carrier symbol in timedomain, wherein the multi-carrier symbol comprises a Cyclic Prefix (CP).

In one embodiment, each of the X1 resource elements (RE) occupies anOrthogonal Frequency Division Multiplexing (OFDM) sub-carrier infrequency domain and an OFDM symbol in time domain, wherein the OFDMsymbol comprises a Cyclic Prefix (CP).

In one embodiment, the X1 modulation symbols are generated by bits inthe first bit block successively through Modulation.

In one embodiment, the X1 modulation symbols are generated by bits inthe first bit block successively through Scrambling and Modulation.

In one embodiment, the X1 modulation symbols are generated by the firstbit block successively through Segmentation, Channel Coding, RateMatching, Concatenation, Scrambling and Modulation.

In one embodiment, the X1 modulation symbols are generated by the firstbit block successively through Channel Coding, Rate Matching, Scramblingand Modulation.

Embodiment 8

Embodiment 8 illustrates a schematic diagram of a first time and asecond time according to one embodiment of the present disclosure, asshown in FIG. 8. In FIG. 8, the horizontal axis represents time. In caseA, the second time is a start time for a reception of a first radiosignal, while in case B, the second time is different from a start timefor a reception of a first radio signal.

In Embodiment 8, a start time for a transmission of the first radiosignal in the present disclosure is a first time, and an expected starttime for a reception of the first radio signal is a second time; a sumof the first transmission timing adjustment in the present disclosureand the second transmission timing adjustment in the present disclosureis used to determine a length of a time interval from the first time tothe second time.

In one embodiment, the second time is different from an actual starttime for a reception of the first radio signal.

In one embodiment, the second time is the same with an actual start timefor a reception of the first radio signal.

In one embodiment, the second time is a start time for a reception ofthe first radio signal assumed by the first-type communication node.

In one embodiment, the second time is a start time for a reception ofthe first radio signal assumed by a transmitter of the first radiosignal.

In one embodiment, the first time is earlier than the second time.

In one embodiment, the first time is not later than the second time.

In one embodiment, a length of the time interval from the first time tothe second time is a TA value of the first radio signal.

In one embodiment, a sum of the first transmission timing adjustment andthe second transmission timing adjustment is a sum of the firsttransmission timing adjustment and the second transmission timingadjustment being converted into a same unit of measurement.

In one embodiment, a sum of the first transmission timing adjustment andthe second transmission timing adjustment is used by the first-typecommunication node to determine a length of a time interval from thefirst time to the second time.

In one embodiment, a sum of the first transmission timing adjustment andthe second transmission timing adjustment is equal to a length of a timeinterval from the first time to the second time.

Embodiment 9

Embodiment. 9 illustrates a schematic diagram of the relations among theminimum step-size corresponding to a first transmission timingadjustment, the minimum step-size corresponding to a second transmissiontiming adjustment and a subcarrier spacing of sub-carriers occupied by afirst radio signal according to one embodiment of the presentdisclosure, as shown in FIG. 9. In FIG. 9, the first column representssubcarrier spacings of subcarriers occupied by a radio signal; thesecond column represents minimum step-sizes of a first stage, and thethird column represents minimum step-sizes of the second stage; thesubcarrier spacing in bold font is a subcarrier spacing of subcarriersoccupied by a first radio signal; the minimum step-size of the firststage in bold font is a minimum step-size corresponding to a firsttransmission timing adjustment, and the minimum step-size of the secondstage in bold font is a minimum step-size corresponding to a secondtransmission timing adjustment, wherein the TS is equal to1/(64×30.72×106) second.

In Embodiment 9, at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

In one embodiment, the third information is used to determine aSubcarrier Spacing (SCS) of subcarriers occupied by the first radiosignal.

In one embodiment, the third information indicates a Subcarrier Spacing(SCS) of subcarriers occupied by the first radio signal.

In one embodiment, a subcarrier spacing of subcarriers occupied by thefirst radio signal is equal to 15 kHz multiplied by a non-negativeinteger power of 2.

In one embodiment, the minimum step-size corresponding to the firsttransmission timing adjustment is proportional to a subcarrier spacingof subcarriers occupied by the first radio signal.

In one embodiment, the minimum step-size corresponding to the secondtransmission timing adjustment is inversely proportional to a subcarrierspacing of subcarriers occupied by the first radio signal.

In one embodiment, the minimum step-size corresponding to the secondtransmission timing adjustment is inversely proportional to a subcarrierspacing of subcarriers occupied by the first radio signal.

In one embodiment, the minimum step-size δ₂ corresponding to the secondtransmission timing adjustment is obtained by the following formula:

$\delta_{2} = {\frac{15}{SC} \times 16 \times 64\mspace{14mu}{Ts}}$

wherein the SC is a subcarrier spacing of subcarriers occupied by thefirst radio signal, the Ts is equal to 1/(64×30.72×10⁶) second.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of obtaining Q2 candidateadjustments according to one embodiment of the present disclosure; asshown in FIG. 10. In FIG. 10, the first column represents Q2 consecutivenon-negative integers, the second column represents Q2 candidateintegers, and the third column represents Q2 candidate adjustment; 62 isa minimum step-size corresponding to a second transmission timingadjustment; a first threshold is set to be equal to 4 in thisembodiment, and Q2 is set to be equal to 8 in this embodiment.

In Embodiment 10, the Q2 candidate adjustments in the present disclosureare obtained by multiplying Q2 candidate integers respectively by theminimum step-size corresponding to the second transmission timingadjustment in the present disclosure, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers; the second information is used in the Q2consecutive non-negative integers to indicate consecutive non-negativeintegers that obtain the second transmission timing adjustment, and thefirst threshold is related to at least one of the Q2 or the firsttransmission timing adjustment.

In one embodiment, the Q2 consecutive non-negative integers arepredefined.

In one embodiment, the Q2 consecutive non-negative integers areconfigurable.

In one embodiment, the Q2 consecutive non-negative integers are 0, 1, 2,. . . , Q2-1.

In one embodiment, the first threshold value is equal to 0.

In one embodiment, the first threshold value is equal to 16.

In a subembodiment, the first threshold is proportional to the Q2.

In one embodiment, the first threshold is equal to [Q2/2].

In one embodiment, the first threshold is proportional to the firsttransmission timing adjustment.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of X integer setsaccording to one embodiment of the present disclosure; as shown in FIG.11. In FIG. 11, X is set to be equal to 2 in this embodiment.

In Embodiment 11, the Q2 consecutive non-negative integers in thepresent disclosure belong to a first integer set, and the fourthinformation in the present disclosure is used to determine the firstinteger set among X integer sets, the X being a positive integer greaterthan 1; each of the X integer sets comprises a positive integer numberof non-negative integer(s), the X integer sets being predefined.

In one embodiment, the X is equal to 2.

In one embodiment, the X is a positive integer greater than 2.

In one embodiment, the X integer sets respectively correspond to X CellGroups (CG).

In one embodiment, the first integer set corresponds to a Secondary CellGroup (SCG).

In one embodiment, the first integer set corresponds to a CG other thanan SCG.

In one embodiment, frequency-domain resources occupied by the firstradio signal belong to a Carrier comprised in an SCG.

In one embodiment, frequency-domain resources occupied by the firstradio signal belong to a Carrier comprised in a CG other than an SCG.

Embodiment 12

Embodiment 12 illustrates a schematic diagram of the relationshipbetween Q1 candidate adjustments and Q1 candidate integers according toone embodiment of the present disclosure; as shown in FIG. 12. In FIG.12, the first column represents Q1 candidate integers, the second columnrepresents Q1 candidate adjustments, and δ₁ is a minimum step-sizecorresponding to a first transmission timing adjustment, the Q1 beingset to be equal to 4 in this embodiment.

In Embodiment 12, the Q1 candidate adjustments in the present disclosureare predefined; or the Q1 candidate adjustments in the presentdisclosure are obtained by multiplying the Q1 candidate integersrespectively by the minimum step-size corresponding to the firsttransmission timing adjustment in the present disclosure; the firstinformation in the present disclosure indicates a candidate integergenerating the first transmission timing adjustment in the Q1 candidateintegers, the Q1 candidate integers all being non-negative values.

In one embodiment, the Q1 candidate integers are predefined;

In one embodiment, the Q1 candidate adjustments are predefined accordingto a height of the second-type communication node.

In one embodiment, the Q1 candidate adjustments are predefined accordingto heights of different types of satellites.

In one embodiment, the Q1 candidate adjustments are predefined accordingto delays from different types of satellites to the ground plus a delayfrom the satellite to a Feeder Link.

In one embodiment, the Q1 candidate integers are consecutive Q1integers.

In one embodiment, the Q1 candidate integers comprise 0.

In one embodiment, the Q1 candidate integers do not comprise 0.

In one embodiment, the Q1 candidate integers are consecutive Q1 integersstarting with a positive integer A as a minimum value.

In one embodiment, the Q1 candidate integers are discrete.

Embodiment 13

Embodiment 13 illustrates a schematic diagram of the relations among astart time for a transmission of first information, a start time for atransmission of second information and a second radio signal accordingto one embodiment of the present disclosure, as shown in FIG. 13. InFIG. 13, the horizontal axis represents time, the rectangle filled withcross lines represents a second radio signal, the rectangle filled withslashes represents first information, and the rectangle filled withcross lines represents second information.

In Embodiment 13, the second radio signal in the present disclosure isused to determine at least one of a start time for a transmission of thefirst information in the present disclosure, or a start time for atransmission of the second information in the present disclosure.

In one embodiment, the second radio signal is transmitted through aPRACH.

In one embodiment, the second radio signal carries a Preamble.

In one embodiment, the second radio signal is transmitted through aRandom Access Channel (RACH).

In one embodiment, the first information is transmitted through a RAR,and the second radio signal is used to determine a start time for atransmission of the first information.

In one embodiment, the second information is transmitted through a RAR,and the second radio signal is used to determine a start time for atransmission of the second information.

In one embodiment, the second radio signal is used to determine a firsttime window, at least one of a start time for a transmission of thefirst information, or a start time for a transmission of the secondinformation belongs to the first time window.

In one embodiment, the second radio signal is used to determine a firsttime window, at least one of a start time for a transmission of thefirst information, or a start time for a transmission of the secondinformation belongs to the first time window; a length of a timeinterval from a start time of the first time window to a start time fora transmission of the second radio signal is predefined.

In one embodiment, the second radio signal is used to determine a firsttime window, at least one of a start time for a transmission of thefirst information, or a start time for a transmission of the secondinformation belongs to the first time window; a length of a timeinterval from a start time of the first time window to an end time for atransmission of the second radio signal is predefined.

In one embodiment, an end time for a transmission of the second radiosignal is earlier than a start time for a reception of the firstinformation.

In one embodiment, a start time for a transmission of the second radiosignal is later than an end time for a reception of the firstinformation.

In one embodiment, a start time for a transmission of the second radiosignal is used to determine at least one of a start time for atransmission of the first information in the present disclosure, or astart time for a transmission of the second information in the presentdisclosure.

In one embodiment, an end time for a transmission of the second radiosignal is used to determine at least one of a start time for atransmission of the first information in the present disclosure, or astart time for a transmission of the second information in the presentdisclosure.

Embodiment 14

Embodiment 14 illustrates a structure diagram of a processing device ina first-type communication node, as shown in FIG. 14. In FIG. 14, afirst-type communication node processing device 1400 is mainly composedof a first receiver 1401, a second receiver 1402 and a first transmitter1403. The first receiver 1401 comprises the transmitter/receiver 456(including the antenna 460), the receiving processor 452 and thecontroller/processor 490 in FIG. 4 of the present disclosure; the secondreceiver 1402 comprises the transmitter/receiver 456 (including theantenna 460), the receiving processor 452 and the controller/processor490 in FIG. 4 of the present disclosure; the first transmitter 1403comprises the transmitter/receiver 456 (including the antenna 460), thetransmitting processor 455 and the controller/processor 490 in FIG. 4 ofthe present disclosure.

In Embodiment 14, the first receiver 1401 receives first information;the second receiver 1402 receives second information; the firsttransmitter 1403 transmits a first radio signal; wherein the firstinformation is used to determine a first transmission timing adjustment,the second information is used to determine a second transmission timingadjustment, and a start time for a transmission of the first radiosignal is related to the first transmission timing adjustment and thesecond transmission timing adjustment; a minimum step-size correspondingto the first transmission timing adjustment is not equal to a minimumstep-size corresponding to the second transmission timing adjustment;the first information, the second information and the first radio signalare all transmitted through an air interface.

In one embodiment, the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1.

In one embodiment, the second receiver 1402 also receives thirdinformation; wherein the start time for the transmission of the firstradio signal is a first time, and an expected start time for a receptionof the first radio signal is a second time; a sum of the firsttransmission timing adjustment and the second transmission timingadjustment is used to determine a length of a time interval from thefirst time to the second time; the third information is used todetermine the second time, and the third information is transmittedthrough the air interface.

In one embodiment, at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

In one embodiment, the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q2 candidate adjustments are obtained by multiplying Q2 candidateintegers respectively by the minimum step-size corresponding to thesecond transmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers; the second information is used in the Q2consecutive non-negative integers to indicate consecutive non-negativeintegers that obtain the second transmission timing adjustment, and thefirst threshold is related to at least one of the Q2 or the firsttransmission timing adjustment;

In one embodiment, the second receiver 1402 also receives fourthinformation; wherein the first transmission timing adjustment is one ofQ1 candidate adjustments, and the second transmission timing adjustmentis one of Q2 candidate adjustments; the minimum step-size correspondingto the first transmission timing adjustment is equal to a minimum valueof an absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q2 candidate adjustments are obtained by multiplying Q2 candidateintegers respectively by the minimum step-size corresponding to thesecond transmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers respectively; the second information is used inthe Q2 consecutive non-negative integers to indicate consecutivenon-negative integers that obtain the second transmission timingadjustment, and the first threshold is related to at least one of the Q2or the first transmission timing adjustment; the Q2 consecutivenon-negative integers belong to a first integer set, and the fourthinformation is used to determine the first integer set in X integersets, the X being a positive integer greater than 1; each of the Xinteger sets comprises a positive integer number of non-negativeinteger(s), the X integer sets being predefined, and the fourthinformation is transmitted through the air interface.

In one embodiment, the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q1 candidate adjustments are predefined; or the Q1 candidateadjustments are obtained by respectively multiplying the Q1 candidateintegers by the minimum step-size corresponding to the firsttransmission timing adjustment; the first information indicates acandidate integer generating the first transmission timing adjustment inthe Q1 candidate integers, the Q1 candidate integers being allnon-negative values.

In one embodiment, the first receiver 1401 also receives fifthinformation; wherein the fifth information is used to determine whetherthe minimum step-size corresponding to the first transmission timingadjustment is equal to the minimum step-size corresponding to the secondtransmission timing adjustment, and the fifth information is transmittedthrough the air interface.

In one embodiment, the first transmitter 1403 also transmits a secondradio signal; wherein the second radio signal is used to determine atleast one of a start time for a transmission of the first information ora start time for a transmission of the second information, and thesecond radio signal is transmitted through the air interface.

Embodiment 15

Embodiment 15 illustrates a structure diagram of a processing device ina second-type communication node, as shown in FIG. 15. In FIG. 15, asecond-type communication node processing device 1500 is mainly composedof a second transmitter 1501, a third transmitter 1502 and a thirdreceiver 1503. The second transmitter 1501 comprises thetransmitter/receiver 416 (including the antenna 420), the transmittingprocessor 415 and the controller/processor 440 in FIG. 4 of the presentdisclosure; the third transmitter 1502 comprises thetransmitter/receiver 416 (including the antenna 420), the transmittingprocessor 415 and the controller/processor 440 in FIG. 4 of the presentdisclosure; the third receiver 1503 comprises the transmitter/receiver416 (including the antenna 420), the receiving processor 412 and thecontroller/processor 440 in FIG. 4 of the present disclosure.

In embodiment 15, the second transmitter 1501 transmits firstinformation; the third transmitter 1502 transmits second information;the third receiver 1503 receives a first radio signal; wherein the firstinformation is used to determine a first transmission timing adjustment,the second information is used to determine a second transmission timingadjustment, and a start time for a transmission of the first radiosignal is related to the first transmission timing adjustment and thesecond transmission timing adjustment; a minimum step-size correspondingto the first transmission timing adjustment is not equal to a minimumstep-size corresponding to the second transmission timing adjustment;the first information, the second information and the first radio signalare all transmitted through an air interface.

In one embodiment, the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1.

In one embodiment, the third transmitter 1502 also transmits thirdinformation; wherein the start time for the transmission of the firstradio signal is a first time, and an expected start time for a receptionof the first radio signal is a second time; a sum of the firsttransmission timing adjustment and the second transmission timingadjustment is used to determine a length of a time interval between thefirst time and the second time; the third information is used todetermine the second time, and the third information is transmittedthrough the air interface.

In one embodiment, at least the latter of the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal.

In one embodiment, the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q2 candidate adjustments are obtained by respectively multiplyingQ2 candidate integers by the minimum step-size corresponding to thesecond transmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers respectively; the second information is used inthe Q2 consecutive non-negative integers to indicate consecutivenon-negative integers that obtain the second transmission timingadjustment, and the first threshold is related to at least one of the Q2or the first transmission timing adjustment;

In one embodiment, the third transmitter 1502 also transmits fourthinformation; the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q2 candidate adjustments are obtained by multiplying Q2 candidateintegers respectively by the minimum step-size corresponding to thesecond transmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers; the second information is used in the Q2consecutive non-negative integers to indicate consecutive non-negativeintegers that obtain the second transmission timing adjustment, and thefirst threshold is related to at least one of the Q2 or the firsttransmission timing adjustment; the Q2 consecutive non-negative integersbelong to a first integer set, and the fourth information is used todetermine the first integer set in X integer sets, the X being apositive integer greater than 1; each of the X integer sets comprises apositive integer number of non-negative integer(s), the X integer setsbeing predefined, and the fourth information is transmitted through theair interface.

In one embodiment, the first transmission timing adjustment is one of Q1candidate adjustments, and the second transmission timing adjustment isone of Q2 candidate adjustments; the minimum step-size corresponding tothe first transmission timing adjustment is equal to a minimum value ofan absolute value of a difference of any two of the Q1 candidateadjustments, and the minimum step-size corresponding to the secondtransmission timing adjustment is equal to a minimum value of anabsolute value of a difference of any two of the Q2 candidateadjustments, both the Q1 and the Q2 being positive integers greater than1; the Q1 candidate adjustments are predefined; or the Q1 candidateadjustments are obtained by multiplying the Q1 candidate integersrespectively by the minimum step-size corresponding to the firsttransmission timing adjustment; the first information indicates acandidate integer generating the first transmission timing adjustment inthe Q1 candidate integers, the Q1 candidate integers being allnon-negative values.

In one embodiment, the second transmitter 1501 also transmits fifthinformation; wherein the fifth information is used to determine whetherthe minimum step-size corresponding to the first transmission timingadjustment is equal to the minimum step-size corresponding to the secondtransmission timing adjustment, and the fifth information is transmittedthrough the air interface.

In one embodiment, the third receiver 1503 also receives a second radiosignal; wherein the second radio signal is used to determine at leastone of a start time for a transmission of the first information or astart time for a transmission of the second information, and the secondradio signal is transmitted through the air interface.

The ordinary skill in the art may understand that all or part step-sizesin the above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part step-sizes in the above embodimentsalso may be implemented by one or more integrated circuits.Correspondingly, each module unit in the above embodiment may berealized in the form of hardware, or in the form of software functionmodules. The first-type communication node or the UE or the terminal inthe present disclosure includes but is not limited to mobile phones,tablet computers, laptops, network cards, low-power devices, eMTCdevices, NB-IOT devices, vehicle-mounted communication equipment,aircrafts, airplanes, unmanned aerial vehicles (UAV), tele-controlledaircrafts and other wireless communication devices. The second-typecommunication node or the base station or the network side device in thepresent disclosure includes but is not limited to the macro-cellularbase stations, micro-cellular base stations, home base stations, relaybase stations, eNB, gNB, Transmitting and Receiving Point (TRP), relaysatellites, satellite base stations, air base stations and otherwireless communication equipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

What is claimed is:
 1. A method in a first-type communication node forwireless communications, comprising: receiving first information;receiving second information; and transmitting a first radio signal;wherein the first information is used to determine a first transmissiontiming adjustment, the second information is used to determine a secondtransmission timing adjustment, and a start time for a transmission ofthe first radio signal is related to the first transmission timingadjustment and the second transmission timing adjustment; a minimumstep-size corresponding to the first transmission timing adjustment isnot equal to a minimum step-size corresponding to the secondtransmission timing adjustment; the first information, the secondinformation and the first radio signal are all transmitted through anair interface; the second information comprises all or part of a RandomAccess Response (RAR), or the second information comprises all or partof a Timing Advance (TA) update; when the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment are converted into a same unit of measurement, the minimumstep-size corresponding to the first transmission timing adjustment issmaller than the minimum step-size corresponding to the secondtransmission timing adjustment.
 2. The method according to claim 1,wherein the first transmission timing adjustment is one of Q1 candidateadjustments, and the second transmission timing adjustment is one of Q2candidate adjustments; the minimum step-size corresponding to the firsttransmission timing adjustment is equal to a minimum of an absolutevalue of a difference of any two of the Q1 candidate adjustments, andthe minimum step-size corresponding to the second transmission timingadjustment is equal to a minimum of an absolute value of a difference ofany two of the Q2 candidate adjustments, both the Q1 and the Q2 beingpositive integers greater than 1; at least the latter of the minimumstep-size corresponding to the first transmission timing adjustment andthe minimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal; the Q1 candidate adjustments are predefined,or obtained by multiplying Q1 candidate integers respectively by theminimum step-size corresponding to the first transmission timingadjustment and the Q1 candidate integers are predefined; any two of theQ1 candidate adjustments are unequal, any two of the Q2 candidateadjustments are unequal, there is one of the Q1 candidate adjustmentsbeing equal to
 0. 3. The method according to claim 2, wherein theminimum step-size δ₂ corresponding to the second transmission timingadjustment is obtained by the following formula:δ₂=15/SC×16×64T _(s) wherein the SC is a subcarrier spacing ofsubcarriers occupied by the first radio signal, the T_(s) is equal to1/(64×30.72×106) second.
 4. The method according to claim 1, comprising:receiving third information; wherein the start time for the transmissionof the first radio signal is a first time, and an expected start timefor a reception of the first radio signal is a second time; a sum of thefirst transmission timing adjustment and the second transmission timingadjustment is used to determine a length of a time interval from thefirst time to the second time; the third information is used todetermine the second time, and the third information is transmittedthrough the air interface; the first time is not later than the secondtime, a length of the time interval from the first time to the secondtime is a TA value of the first radio signal.
 5. The method according toclaim 2, wherein the Q2 candidate adjustments are obtained by Q2candidate integers respectively multiplied by the minimum step-sizecorresponding to the second transmission timing adjustment, and the Q2candidate integers are obtained by subtracting a first threshold from Q2consecutive non-negative integers respectively; the second informationis used to indicate a non-negative integer used to obtain the secondtransmission timing adjustment among the Q2 consecutive non-negativeintegers, and the first threshold is related to at least one of the Q2or the first transmission timing adjustment; the Q2 consecutivenon-negative integers are predefined, or the Q2 consecutive non-negativeintegers are configurable.
 6. The method according to claim 5, furthercomprising: receiving fourth information; wherein the Q2 consecutivenon-negative integers belong to a first integer set, and the fourthinformation is used to determine the first integer set among X integersets, the X being a positive integer greater than 1; each of the Xinteger sets comprises a positive integer number of non-negativeinteger(s), the X integer sets being predefined, and the fourthinformation is transmitted through the air interface.
 7. The methodaccording to claim 1, comprising: transmitting a second radio signal;wherein the second radio signal is used to determine at least one of astart time for a transmission of the first information and a start timefor a transmission of the second information, and the second radiosignal is transmitted through the air interface; the second radio signalis transmitted through a PRACH, the second radio signal is used todetermine a first time window, at least one of a start time for atransmission of the first information, or a start time for atransmission of the second information belongs to the first time window.8. A method for a second-type communication node in wirelesscommunications, comprising: transmitting first information; transmittingsecond information; and receiving a first radio signal; wherein thefirst information is used to determine a first transmission timingadjustment, the second information is used to determine a secondtransmission timing adjustment, and a start time for a transmission ofthe first radio signal is related to the first transmission timingadjustment and the second transmission timing adjustment; a minimumstep-size corresponding to the first transmission timing adjustment isnot equal to a minimum step-size corresponding to the secondtransmission timing adjustment; the first information, the secondinformation and the first radio signal are all transmitted through anair interface; the second information comprises all or part of a RandomAccess Response (RAR), or the second information comprises all or partof a Timing Advance (TA) update; when the minimum step-sizecorresponding to the first transmission timing adjustment and theminimum step-size corresponding to the second transmission timingadjustment are converted into a same unit of measurement, the minimumstep-size corresponding to the first transmission timing adjustment issmaller than the minimum step-size corresponding to the secondtransmission timing adjustment.
 9. The method according to claim 6,wherein the first transmission timing adjustment is one of Q1 candidateadjustments, and the second transmission timing adjustment is one of Q2candidate adjustments; the minimum step-size corresponding to the firsttransmission timing adjustment is equal to a minimum of an absolutevalue of a difference of any two of the Q1 candidate adjustments, andthe minimum step-size corresponding to the second transmission timingadjustment is equal to a minimum of an absolute value of a difference ofany two of the Q2 candidate adjustments, both the Q1 and the Q2 beingpositive integers greater than 1; at least the latter of the minimumstep-size corresponding to the first transmission timing adjustment andthe minimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal; the Q1 candidate adjustments are predefined,or obtained by multiplying the Q1 candidate integers respectively by theminimum step-size corresponding to the first transmission timingadjustment; and the Q1 candidate integers are predefined; any two of theQ1 candidate adjustments are unequal, any two of the Q2 candidateadjustments are unequal, there is one of the Q1 candidate adjustmentsbeing equal to
 0. 10. The method according to claim 9, wherein theminimum step-size δ₂ corresponding to the second transmission timingadjustment is obtained by the following formula:δ₂=15/SC×16×64T _(s) wherein the SC is a subcarrier spacing ofsubcarriers occupied by the first radio signal, the T_(s) is equal to1/(64×30.72×106) second.
 11. The method according to claim 8,comprising: transmitting third information; wherein the start time forthe transmission of the first radio signal is a first time, and anexpected start time for a reception of the first radio signal is asecond time; a sum of the first transmission timing adjustment and thesecond transmission timing adjustment is used to determine a length of atime interval from the first time to the second time; the thirdinformation is used to determine the second time, and the thirdinformation is transmitted through the air interface; the first time isnot later than the second time, a length of the time interval from thefirst time to the second time is a TA value of the first radio signal.12. The method according to claim 9, wherein the Q2 candidateadjustments are obtained by Q2 candidate integers respectivelymultiplied by the minimum step-size corresponding to the secondtransmission timing adjustment, and the Q2 candidate integers areobtained by subtracting a first threshold from Q2 consecutivenon-negative integers respectively; the second information is used toindicate a non-negative integer used to obtain the second transmissiontiming adjustment among the Q2 consecutive non-negative integers, andthe first threshold is related to at least one of the Q2 or the firsttransmission timing adjustment; the Q2 consecutive non-negative integersare predefined or the Q2 consecutive non-negative integers areconfigurable.
 13. The method according to claim 12, comprising:transmitting fourth information; wherein the Q2 consecutive non-negativeintegers belong to a first integer set, and the fourth information isused to determine the first integer set among X integer sets, the Xbeing a positive integer greater than 1; each of the X integer setscomprises a positive integer number of non-negative integer(s), the Xinteger sets being predefined, and the fourth information is transmittedthrough the air interface.
 14. A first-type communication node forwireless communications, comprising: a first receiver, receiving firstinformation; a second receiver, receiving second information; and afirst transmitter, transmitting a first radio signal; wherein the firstinformation is used to determine a first transmission timing adjustment,the second information is used to determine a second transmission timingadjustment, and a start time for a transmission of the first radiosignal is related to the first transmission timing adjustment and thesecond transmission timing adjustment; a minimum step-size correspondingto the first transmission timing adjustment is not equal to a minimumstep-size corresponding to the second transmission timing adjustment;the first information, the second information and the first radio signalare all transmitted through an air interface; the second informationcomprises all or part of a Random Access Response (RAR), or the secondinformation comprises all or part of a Timing Advance (TA) update; whenthe minimum step-size corresponding to the first transmission timingadjustment and the minimum step-size corresponding to the secondtransmission timing adjustment are converted into a same unit ofmeasurement, the minimum step-size corresponding to the firsttransmission timing adjustment is smaller than the minimum step-sizecorresponding to the second transmission timing adjustment.
 15. Thefirst-type communication node according to claim 14, wherein the firsttransmission timing adjustment is one of Q1 candidate adjustments, andthe second transmission timing adjustment is one of Q2 candidateadjustments; the minimum step-size corresponding to the firsttransmission timing adjustment is equal to a minimum of an absolutevalue of a difference of any two of the Q1 candidate adjustments, andthe minimum step-size corresponding to the second transmission timingadjustment is equal to a minimum of an absolute value of a difference ofany two of the Q2 candidate adjustments, both the Q1 and the Q2 beingpositive integers greater than 1; at least the latter of the minimumstep-size corresponding to the first transmission timing adjustment andthe minimum step-size corresponding to the second transmission timingadjustment is related to a sub-carrier spacing of sub-carriers occupiedby the first radio signal; the Q1 candidate adjustments are predefined,or obtained by multiplying the Q1 candidate integers respectively by theminimum step-size corresponding to the first transmission timingadjustment; and the Q1 candidate integers are predefined; any two of theQ1 candidate adjustments are unequal, any two of the Q2 candidateadjustments are unequal, there is one of the Q1 candidate adjustmentsbeing equal to
 0. 16. The first-type communication node according toclaim 15, wherein the minimum step-size δ₂ corresponding to the secondtransmission timing adjustment is obtained by the following formula:δ₂=15/SC×16×64T _(s) wherein the SC is a subcarrier spacing ofsubcarriers occupied by the first radio signal, the T_(s) is equal to1/(64×30.72×106) second.
 17. The first-type communication node accordingto claim 14, wherein the second receiver receives third information;herein, the start time for the transmission of the first radio signal isa first time, and an expected start time for a reception of the firstradio signal is a second time; a sum of the first transmission timingadjustment and the second transmission timing adjustment is used todetermine a length of a time interval from the first time to the secondtime; the third information is used to determine the second time, andthe third information is transmitted through the air interface; thefirst time is not later than the second time, a length of the timeinterval from the first time to the second time is a TA value of thefirst radio signal.
 18. The first-type communication node according toclaim 15, wherein the Q2 candidate adjustments are obtained by Q2candidate integers respectively multiplied by the minimum step-sizecorresponding to the second transmission timing adjustment, and the Q2candidate integers are obtained by subtracting a first threshold from Q2consecutive non-negative integers respectively; the second informationis used to indicate a non-negative integer used to obtain the secondtransmission timing adjustment among the Q2 consecutive non-negativeintegers, and the first threshold is related to at least one of the Q2or the first transmission timing adjustment; the Q2 consecutivenon-negative integers are predefined or the Q2 consecutive non-negativeintegers are configurable.
 19. The first-type communication nodeaccording to claim 18, wherein the second receiver receives fourthinformation; wherein the Q2 consecutive non-negative integers belong toa first integer set, and the fourth information is used to determine thefirst integer set among X integer sets, the X being a positive integergreater than 1; each of the X integer sets comprises a positive integernumber of non-negative integer(s), the X integer sets being predefined,and the fourth information is transmitted through the air interface. 20.The first-type communication node according to claim 14, wherein thefirst transmitter transmits a second radio signal; wherein the secondradio signal is used to determine at least one of a start time for atransmission of the first information and a start time for atransmission of the second information, and the second radio signal istransmitted through the air interface; the second radio signal istransmitted through a PRACH, the second radio signal is used todetermine a first time window, at least one of a start time for atransmission of the first information, or a start time for atransmission of the second information belongs to the first time window.